Presented by the Music Box and Movieside Film Festival, this 15-hour marathon of sci-fi movies begins at noon on Saturday, May 5, in the Music Box’s main theater, 3733 N. Southport. Tickets for the whole marathon are $16, and ticket holders may leave and reenter the theater. Showtimes are approximate; for more information call 773-871-6604 or visit musicboxtheatre.com.

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Short works A Trip to the Moon (1902) is Georges Melies’s classic silent short about astromers who journey to the moon, landing their rocket square in its eye. Haredevil Hare (1948), a Warner Brothers cartoon directed by Chuck Jones, features Bugs Bunny and the screen debut of Marvin the Martian. (JJ) a 2:15 PM.

RForbidden Planet An engaging 1956 science fiction gloss of Shakespeare’s The Tempest, with a ship full of American astronauts landing on a mysterious planet where Walter Pidgeon and his miniskirted daughter, Anne Francis, guard the remains of a lost civilization. Even as the SF cliches fall fast and heavy, this is great to look at, thanks to the sumptuous MGM sets and the fine animation and matte work by Walt Disney Studios. Fred Wilcox directed. 98 min. (DK)

Electronic Labyrinth THX 1138 4EB A rare screening of George Lucas’s student short (1967, 15 min.) about a dystopian future, which he later developed into his feature debut, THX 1138 (1971).

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